42 + 42 =??? 43 : 6 =??? 98 - 27 =??? 78 : 6 =???

Question

42 + 42 =??? 43 : 6 =??? 98 - 27 =??? 78 : 6 =???

Answer 1

1)42+42=84

2)98-27=71

3) 43:6=7.1

4)78:6=13